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Pyromellitic Dianhydride CAS#89-32-7

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Chemical Name：Pyromellitic Dianhydride

CAS No.:89-32-7

Molecular Formula:C10H2O6

Molecular weight：218.12

Sample: Available

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Product Details

Products Description of Pyromellitic Dianhydride CAS#89-32-7

The English name of pyromellitic dianhydride is Pyromellitic Dianhydride (abbreviated as PMDA, the same below), which is mainly used to synthesize polyimide. Because polyimide has excellent chemicalbook ultra-high heat resistance, acid and alkali resistance, and excellent Due to its excellent mechanical properties, electrical properties and dimensional stability, it is widely used in high-tech fields such as aviation, aerospace, microelectronics and atomic energy that have strict requirements on material properties.

Pyromellitic Dianhydride Chemical Properties

Melting point	283-286 °C(lit.)
Boiling point	397-400 °C(lit.)
density	1,68 g/cm3
vapor pressure	0Pa at 25℃
refractive index	1.6000 (estimate)
Fp	380 °C
solubility	Soluble in dimethyl sulfoxide, acetone, chloroform, ethyl ether, n-hexane and benzene.
form	Fine Powder
pka	5.45[at 20 ℃]
color	White to pale yellow
Water Solubility	decomposes
Sensitive	Moisture Sensitive
BRN	213583
InChIKey	ANSXAPJVJOKRDJ-UHFFFAOYSA-N
LogP	-2.03 at 21.5℃
CAS DataBase Reference	89-32-7(CAS DataBase Reference)
NIST Chemistry Reference	1,2,4,5-Benzenetetracarboxylic anhydride(89-32-7)
EPA Substance Registry System	1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone (89-32-7)

Safety Information

Hazard Codes	Xn
Risk Statements	41-42/43
Safety Statements	22-24-26-37/39
WGK Germany	1
RTECS	DB9300000
F	10-21
TSCA	Yes
HS Code	29173980
Hazardous Substances Data	89-32-7(Hazardous Substances Data)

Product Application of Pyromellitic Dianhydride CAS#89-32-7

Pyromellitic dianhydride (PMDA) is an important raw material in the organic synthesis industry and a basic raw material for the development of new chemical materials and high value-added fine chemical products. It is mainly used to produce polyimide monomers and can also be used as It is a curing agent for epoxy resin and a cross-linking agent for polyester resin. It is used to manufacture phthalocyanine blue dyes and some important derivatives. It has a wide range of uses.

Pyromellitic dianhydride, also known as homoanhydride, has a special molecular structure and can be used to make materials with heat resistance, electrical insulation and chemical resistance. The most important use is as a monomer of polyimide. Polyimide plastic is synthesized with aromatic diamines, but the purity requirements for pyromellitic dianhydride are very high, and it needs to be above 99%.

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